You have to be pretty lucky (or unlucky as the case may be) to have the released spores from a popped bubble algea be at the exact right stage "ripeness" to actually be viable to reproduce. It is not as if as a popped bubble will usually contain mature spores that are capable of reproduction. There have been numerous articles written on this (I didn't check but there are probably a few references in our reference library). I have picked bubble algea off my rocks - usually right in the aquarium - some popped and some didn't but irregardless I did not have an explosion of bubble algea in my tank. From time to time one or 2 appear and I pick it off.
IMO actually boiling the rock is extreme and you have basically turned your live rock into dead rock that is virtually worthless until it hopefully reseeds with beneficial bacteria etc. I would just be tempted to buy new live rock but would have first tried to remove all bubbles outside of the tank or tried a few emerald crabs. JMO

Here is a picture of one of the better rocks I had in the system. This is the reason I boiled, there was just too much to try and clean off. It covered just about every rock I had, except few burried at the bottom.

http://www.thedropfactory.com/pictur...%20(Small).JPG

My foxface would of thought he had died and gone to heaven if I had given him that rock :lol: . One mans weeds are another mans/womens fish food :razz:

WOW~ yah, my rabbitfish would have been pretty happy too!